From SIS4Teachers

Deck o’ Dots
Deck o’ Dots is a versatile deck of cards and game boards specifically designed without digits to help children subitize.

Five Frame Templates
This digital download includes a five frame mat, mini five frame cards, and a five frame template.

Ten Frame Templates
This download includes a ten frame mat, a double ten frame mat, a ten frame template and ten frame mini cards.

Subitzing Mats
A collection of subitzing mats - five frame (horizontal and vertical), ten frame, double ten frame, and a scatter mat.

Sensational Math Subitizing Activity Cards
Subitizing, recognizing the number of objects in a group without having to count the objects, is a fundamental building block for developing number sense.

Abacus (red/white)
Use for exploring number concepts and for developing basic math skills in counting, addition, and subtraction.

Rekenrek
Designed to teach basic math skills. Ideal for counting activities and demonstrating addition and subtraction.
Tech Links

Teacher Tools for Interactive Whiteboards
Free math virtual manipulatives to use with any whiteboard bring math to life - includes category of tools for number sense for each grade K-8.

Number Rack by The Math Learning Center
Number Rack facilitates the natural development of children’s number sense. Available as iOS app and Android app.

Interactive Ten Frame (NCTM)
The four games that can be played with this applet help to develop counting and addition skills.

Interactive Five Frame (NCTM)
The four games that can be played with this applet help to develop counting and addition skills.

10 Frame Fill
“10 Frame Fill” provides children practice with recognizing additive “10 Families” (e.g., 1 and 9, 2 and 8, etc.).